Silicon dioxide intermediate layer in thermal transfer medium
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United States of America Patent
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-
Dec 6, 1983
Grant Date -
N/A
app pub date -
Dec 22, 1981
filing date -
Dec 22, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a thermal transfer medium which comprises a mixture of a thermosetting polyimide, a thermoplastic polyimide, and graphite. It has a steel support layer and an intermediate layer of silicon dioxide. An outer layer on the steel is the thermal ink. The mixture is applied as a dispersion with a precursor of the thermosetting polyimide. The ribbon may be recoated at the typing station by applying a hot-melt of the ink.
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